Cold temperatures in winter WILL trigger second coronavirus wave, study confirms

COLD temperatures in the winter will trigger a second coronavirus wave with colder countries experiencing larger-scale outbreaks, experts have revealed.

Scientists evaluated the relationship between the amount of Covid cases in a country in comparison to its average temperature.

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The experts, based in India, found that countries with colder temperatures had also experienced more severe outbreaks.

It comes just weeks after top government scientists in the UK claimed that winter could bring a deadly second wave of the virus as the nation's health services come under more pressure and temperatures plummet.

Sir Patrick Vallance previously said that there is a “reasonable chance” that the virus will have advantages in winter.

Biochemist Chandi Mandal of the Central University of Rajasthan and Mahaveer Singh Panwar of Banaras Hindu University have now said that countries in the northern hemisphere could be in trouble as we move past the summer months.

If low temperature is a risk factor for Covid-19, then summer could reduce the transmission and infection rate

They added that summer may be the best time to fight the virus.

Profs Mandal and Panwar collected data from late March to mid-April and found that countries in higher latitudes and colder climates were more likely to have higher case loads.

This is while in warmer and lower latitude countries, less cases were reported.

The Southern Hemisphere low latitudes are considered to be the areas of the earth which are south of the equator.


Countries that fall in the Northern Hemisphere and could experience a second wave due to low temperatures include Russia, Canada and China.

Writing in the paper, published in the Journal of Public health the experts said they were unable to fully explain why this was the case.

“All these observations suggest that low temperature might be a risk factor for Covid-19 cases.

“Is it just the cold or are there additional factors?”

Prof Mandal added that the transmission of any virus comes down to air temperature and humidity.

They said that further studies should also factor in underlying health conditions.

Other studies had previously sighted a lack of sunlight as a reason as to why some countries have been hit worse by the pandemic.

It had previously been suggested that taking Vitamin D supplements could help in the fight against Covid-19.

But last week it was revealed that taking such supplements would not prevent people from contracting the virus.

“While more analysis is needed, if low temperature is a risk factor for Covid-19, then summer could reduce the transmission and infection rate.”

They added that higher temperatures could mean that the virus sticks to surfaces for longer periods of time.

“Object surface temperature might influence the longevity of the active virus particles.

“It was carefully observed that countries having larger Covid-19 cases are mostly located above of the latitude of Wuhan, which indicated that there might be a negative relationship between temperature and Covid-19 cases”, they added.


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